6D changed the helmet industry forever in 2013 with the introduction of the
revolutionary ATR-1 off-road motorcycle helmet with its patented Omni-Directional
Suspension (ODS) technology. 6D’s ODS technology has been studied, analyzed,
and tested by some of the greatest minds in head protection and has proven itself effective all around the globe across multiple helmet platforms. The exceptional 6D
ATR-1 revolutionized helmet design and kicked off a technology race to improve
helmet safety performance.

Introducing the all new ATR-2; the next level in brain protection. The 6D ATR-2
is the most advanced energy management device ever manufactured for off-road
motorcycle completion or recreational riding. Infused with the exceptional DNA of
the original ODS technology, but evolved to a whole new level with high-tech
materials and design influenced by our work inside the NFL’s Head Health Challenge
III competition.

The ATR-2, with advanced ODS, is evolved to
provide improved performance in both linear
and angular acceleration mitigation, and is
also easily rebuildable for a potentially longer
service life. This improves rider safety and
saves you money.

MULTI-IMPACT OUTER EPP (Expanded Polypropelyene) LINER:
6D strategically positioned the multi-impact EPP
outer liner against the helmet shell’s inner surface. An
exceptional energy absorption material, the EPP was
specifically engineered with islands of EPP “Damping
Towers” to assist in progressive loading of the ODS
system during impacts. The multi-impact capability of
the EPP is one of the key elements that allows the
rebuilding (provided the helmet’s shell is not compromised from the
impact event) of the ATR-2 after a moderate to severe
impact.

REPLACEABLE INNER EPS (Expanded Polystyrene) LINER:
The inner EPS liner is the first layer of defense and a very
important component of the new advanced ODS design.
It is effectively a helmet within a helmet. It has its own
in-molded PVC (Polyvinyl Chloride) shell that serves many
functions. It nests into the ODS carrier, provides strength
and integrity to the EPS, and serves as a slippery surface
to aide in reducing angular acceleration forces. The EPS is
of a softer density than the EPP and is secured into the
helmet with 4 locking pins that mate to the ODS carrier. It
is also captured by the Chin Bar EPP which provides
additional security.

ODS CARRIER:
The ODS carrier allowed the development of a modular
helmet design that is easily rebuildable. The carrier also
supports the isolation dampers and helps to manage the
system materials during impact, compression, and
shearing loads. ODS self-re-centers post impact.

DESIGNED WITH THE SINGULAR GOAL OF BUILDING THE SAFEST, MOST EFFECTIVE HELMET IMAGINABLE.

NEW SAFETY FEATURES:
Two new safety elements have been engineered into
the new ATR-2. The first, a structural “Brow Rib” provides
incremental strength to the upper eyeport area providing
additional integrity to the shell nearest the eyeport
opening. Additionally, a strategically designed “Cervical
Protection Zone” nests inside the lower rear base of
the helmet. This area is designed to provide a more
compliant crushable region in the event the helmet is
pushed down and back into the neck and spine during
an accident.

ELASTOMERIC ISOLATION DAMPERS:
An array of Isolation Dampers connect the ODS carrier
to the outer EPP liner and work in unison to isolate
impact energy from the brain. The elastic properties of
the dampers, combined with their unique shape provide
a progressive spring rate that assists in managing
low-threshold energy. The hour glass shape and
elastic property also work to manage the 3-dimensional
displacement of the inner liner.

OPTIMIZED SHELL DESIGN:
The 6D concept of ‘Optimized Shell Design’ does not define one element, but a system where multiple
materials work together, in concert, to provide greater
protection and energy management. The shell must have
the structural integrity to prevent penetration, but it
should not be overly stiff or rigid either. An overly stiff and rigid shell can seriously compromise the helmet's
energy management potential.

EPP LINED CHINBAR:
Thicker lower density EPP lined chinbar is more durable
and provides more energy absorbing material for side
impacts to the jaw area. It also includes a polyurethane
over-molded sternum pad.

LOW-THRESHOLD ENERGY
Low Velocity Impacts are Far and Away the Most Common Type of Off-Road Accidents.

Medical research has provided alarming conclusions surrounding the causes, severity,
and long-term effects of concussions. Even seemingly minor concussions may have much
more serious long-term effects on the brain.
No other helmet company cared about low-threshold energy transfer before 6D brought the
issue to light in 2013. This is the most critical performance range of helmets and covers all
impact velocities below the certification standard's requirements, for both linear and angular
accelerations.
Low-Threshold Energy is the most concerning problem facing the athlete today.
6D’s Omni-Directional Suspension (ODS) starts working the instant any force is applied to
the shell. It's suspended inner liner travels and shears under crash impact loading thereby
reducing energy transfer to the brain.

Angular acceleration (rotational force) is generated from oblique angle impacts to the
helmet surface resulting in shearing, stretching, and tearing, of the soft tissues within the
brain.
The medical community has determined that angular acceleration is the primary cause of
concussion, traumatic brain injury and worse.
Laboratory testing at Wayne State University (Experiments conducted by David C. Viano, PhD, Bioengineering Center, Wayne State University) has proven that a helmeted head sustained
the same degree of angular acceleration as the un-helmeted head when subjected to
identical impacts. One of the major benefit features of Omni-Directional Suspension (ODS) is
that it effectively “uncouples” that relationship, allowing the shell and outer liner to shear
independently to the inner layer and the head form.

The new ATR-2, with its advanced ODS system, elevates safety with the next level of energy
management performance.

TIME-TO-PEAK (TTP)
Time is Critical in Reducing Energy Transfer to the Brain.

Time-To-Peak (TTP) is the measurement of time (in milliseconds) it takes the energy of an
impact to reach maximum (peak) G force. Increased deceleration time is the single most
beneficial component of reducing the severity and magnitude of any impact. The more time,
the less severe the energy transfer will be.
6D’s advanced ODS technology buys time.

THE NEXT LEVEL
ATR-2 vs. ATR-1.

The new ATR-2 with advanced ODS provides
improvements in performance compared to
the ATR-1 across a high percentage of impact
scenarios and injury metrics. Increased
displacement travel of the inner liner, improved
material compositions, and the Advanced ODS
system result in improved energy mitigation at
low, mid, and high velocity impacts for both
linear and angular accelerations.